Adam nickel



A. NICKEL.

(No Model.)

PIANO DAMPER.

No. 595,458. Patented Dec. 14,1897.

Inventor,-

Jfimar 5 (75mw UNITED STATES PATENT OFFICE.

ADAM NICKEL, OF NEW YORK, N. Y.

PIANQ DAM PER.

SPECIFICATION forming part of Letters Patent No. 595,458, dated December 14, 1897.

Application filed July 28, 1897. Serial No. 645,684. (No model.)

To all whom it may concern.-

Be it known that I, ADAM NICKEL, of New York city, county and State of New York, have invented an Improved Piano Damper, of

contracted section 6' near its lower end and within groove b which forms a seat for the sprin By providing the screw with this contracted neck I avoid the necessity of en= 5 which the following is a specification. larging the lower end of the screw to form a This invention relates to a piano-damper head which would have to be countersunk, of novel construction, and has for its object and I can, moreover, place the screw nearer more particularly to provide means for adto the edge of the flange b, justing the tension of the damper-spring in a The spring (1 bears permanently against the :0 simple and effective manner. lower side of the screw-neck c. To increase In the accompanying drawings, Figure 1 is the tension of the spring, the screwe is slightly a side view of my improved piano-damper; raised by means of ascrew-driver to draw the Fig. 2, a longitudinal section on line 2 2, Fig. spring upward, while to decrease such ten '1; Fig. 3, a longitudinal section on line 3 3, sion the screw is slightly lowered, as will. be 15 Fig. 2 and Fig. 4, a transverse section on line readily understood.

4: 4:, Fig. 1. hat I claim is- The letter a represents the damper-lever, A piano-damper provided with a grooved pivoted to damper-flange Z) by pivot Z), the lever, a grooved damper-flange pivotally condamper-flange being in turn adapted to be atnected thereto, a spring engaging the lever 2o tached to the action-rail c, all as usual. The and having a forwardly entending arm that dam per-spring cl is coiled around the pivot 12, and in order to admit the coils of such spring the damper-lever a is provided with a groove a around such pivot. The lower forwardlybent arm of spring 01 enters a groove b in the lower face of the damper-flange b, and is engaged by a set-screw e, that passes through said flange preferably in a slightly-slanting direction and projects across the groove 11 In order to effect the engagement between spring 01 and screw 6, the screw has a neck or projects into the groove of the flange, and a regulating-screw passing through the flange and having a contracted neck to receive the spring-arm, which bears permanently against the lower side of such neck, substantially as specified.

ADAM NICKEL.

Witnesses:

PHILIP lilE'NGES, CHAS. IMIUHLENEELS. 

